Tree · Anacardiaceae

Mango

Mangifera indica

Hand it heat, plenty of sun, and soil that drains well, and won't a warm garden fill up with mango all summer long?

Light

Full sun

Water

Every 7–⁠14 days

Hardiness

USDA 10–⁠11

Mature size

10–⁠49 ft · 3–⁠15 m

Toxic to cats, dogs, horses & more
Mango

Overview

The mango is one of those great tropical fruit trees that's easy to fall for. It's a big, long-lived evergreen that can hit 10 to 50 feet (3 to 15 m) with a canopy nearly as wide, and it keeps its leathery leaves all year long. It blooms in the cool months and then ripens fruit through the warmth of late spring and summer, so once it's settled in the right climate, it becomes the backbone of the garden, a tree you plant once and live beside for decades.

Here's what it really wants: warmth, and plenty of it. It's happy in USDA zones 10 and 11, it needs full sun, and it wants soil that drains freely, because soggy roots are just about the only thing that'll do it in. A young tree leans on steady water to settle in, but a grown-up mango barely blinks at a dry spell, and it even treats that cool dry stretch before flowering as a nudge to bloom.

It's worth knowing what you're actually planting. Go with a grafted named cultivar and it'll fruit true to type in a few years, but raise one from a saved seed and you might wait most of a decade for something pretty different. The flesh is a joy to eat, sure, but the tree sits in the poison-ivy family, so the skin, sap, and leaves carry an allergen that asks for a careful hand.

Care

The short version: full sun and real warmth, deep well-drained soil, and steady water for a young tree that you ease off as it grows up. Feed it through the growing season, prune after harvest to keep it open, and never let those roots sit wet.

Light

Mango wants full sun, as much as the day will give it. It'll put up with a little partial sun, but light is what powers strong growth and a heavy bloom, so a shaded tree flowers poorly and barely fruits.

Water

Water a young tree deeply and regularly while it's getting established, then ease off as it matures, because an older mango handles drought just fine. Hold back the water during that cool dry spell before flowering to coax it into bloom, then start up again as the fruit develops. The one thing it won't forgive? Waterlogged soil.

Soil

Give it deep, well-drained loam or sandy loam. Mango's fine with all sorts of ground, just not constant wetness, and a pH from 5.5 to 7.5 keeps the nutrients within reach.

Temperature

It's a tropical tree, so it grows across a broad warm band, roughly 32°F to 104°F (0°C to 40°C), but it's got zero patience for hard frost. A freeze takes out young trees and flowers outright, which is exactly why it sticks to zones 10 and 11.

Humidity

Mango likes the air on the humid side, around 50% to 80%, which fits its tropical roots. That said, damp, still air during bloom is exactly what fungus loves, so airflow matters just as much as moisture.

Feeding

Feed it through spring and summer while it's growing and fruiting, using a balanced fertilizer with micronutrients. A grown mango appreciates nitrogen plus the occasional iron, zinc, and manganese, especially if your soil runs alkaline.

Pruning

Prune after harvest to keep the height in check, take out dead or crossing branches, and open up the canopy so light and air reach the middle. Tip-prune a young tree to build a solid framework early. And pop on gloves first, since the sap can irritate skin.

Repotting

A container or dwarf mango wants fresh soil every 2 to 3 years, with a light root-prune while you're at it. Roots circling the pot or poking out the drainage holes, quick drying after a watering, and stalled new growth are all its way of saying it's time.

Size & spacing

A standard mango is a big tree, reaching 10 to 50 feet (3 to 15 m) tall with a spread of 10 to 40 feet (3 to 12 m). Give it serious room, well clear of buildings, pavement, and overhead lines, or grab a dwarf cultivar for a small garden.

When to plant

Mango runs on a tropical clock, and once you get the rhythm it's pretty simple. It flowers in winter to early spring, sets fruit that ripens from late spring through summer, and goes in the ground in spring once frost's out of the picture and the soil has warmed up. Where things stay mild and frost-free, that timing is more a rhythm than a hard deadline.

Northern hemisphere

Bloom Dec–Mar
Plant Mar–May
Harvest May–Aug

Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.

  • Sow: fresh seed started under warmth in spring (seedlings vary; grafted cultivars preferred)
  • Plant: spring after all danger of frost has passed and soil is warm
  • Harvest: flowers in winter to early spring; fruit ripens late spring through summer

Hardiness

USDA hardiness zones: 10–11

Temperature: down to -1°C

Troubleshooting

Most mango headaches show up during bloom, when wet weather and fungus quietly decide how much fruit you'll actually keep. Learn to read the panicles and the little fruitlets, though, and you can jump in before a problem costs you the crop. Just match up what you're seeing below, then act while it still does some good.

Setback

Sunken black marks showing up on blooms and fruit

Seeing blackened flower clusters and dark streaks that look like tear stains running down the fruit? That's anthracnose, a fungus that wakes up whenever the weather turns warm and wet during bloom, and it'll thin your crop if you let it. The good news is it's manageable. Prune to open things up, keep water off the flowers, and rake up any infected bits from the ground so it can't circle back.

Fix:

  • Improve air circulation by pruning
  • Apply protective fungicides during flowering and fruit set per label
  • Remove and destroy infected plant debris
Setback

A white, powdery dusting on blooms and fruitlets

A white, powdery dusting on the flower clusters usually means powdery mildew, which shows up when nights get cool and the days stay dry right through bloom. Once it coats the flowers and tiny fruitlets, they tend to blacken and drop, so you can lose the crop before it even forms. Keep a close eye on the panicles as they open, and hit the first sign with sulfur or a labeled spray before it gets going.

Fix:

  • Apply sulfur or labeled fungicides at early bloom
  • Repeat applications during flowering as needed
Setback

Lots of blooms but barely any fruit holding on

So the tree flowers like crazy and then drops nearly everything? It happens, and usually it's cool, wet, or cloudy weather at bloom time getting in the way of pollination while giving disease an opening. The other big reason is alternate bearing, which is just the tree taking a breather after a bumper year. Keep disease under control while it flowers, feed it evenly without piling on the nitrogen, and give the off-years some patience, because the good ones come back.

Fix:

  • Ensure disease control during bloom
  • Maintain balanced fertility and avoid excess nitrogen
  • Be patient through off-years of alternate bearing

Toxicity

Good news first: the ripe flesh is safe and a real treat for people. It's the rest of the plant that asks for some respect. Mango's in the same family as poison ivy, so the skin, sap, and leaves carry urushiol, an allergen that can raise an itchy rash on sensitive skin. With animals, though, the bigger worry is that large pit, which is a real choking and blockage hazard, so keep stones, peels, and prunings out of reach.

Toxic to

Cats · Dogs · Horses · Rabbits · Livestock · Birds

Safe for

People

Cats Caution

If a cat licks a bit of ripe flesh, don't sweat it, that part's harmless. What you don't want is the sap and peel, since they carry the same urushiol that bugs skin and can leave the mouth sore. The pit's the real headache, though, because it's way too big to pass and can jam up the gut, so keep stones and trimmings well out of reach.

Dogs Caution

Dogs will beg for sweet mango, and honestly a little bit is fine for most of them. The trouble starts if one gnaws the peel or sap and ends up with a sore, itchy mouth, or gulps down the hard pit and you're suddenly looking at a choking risk or a blockage.

Horses Caution

Now and then, a piece of peeled fruit won't bother a horse at all. Just keep the peel and leaves out of it, since they've got those irritating urushiol compounds, and never hand over a whole pit, because that's a real choking hazard. Stick to small, pitted, peeled bites and you're good.

Rabbits Caution

A rabbit can have a thin sliver of ripe flesh here and there, but that's plenty, since the sugar's a lot for such a little gut. Leave off the peel and leaves with their irritating resins, and whatever you do, keep the pit away.

Livestock Caution

Goats, sheep, and cattle will happily browse fallen fruit and usually come out fine. Still, the urushiol in the peel and leaves can irritate, a belly full of windfalls can upset their stomach, and whole pits are a choking and blockage risk, so it's worth fencing them off.

Birds Caution

Loads of birds go nuts for ripe mango flesh, and a little makes a great treat. Just keep them clear of the peel, sap, and leaves with their irritating compounds, and tidy up any pits so a curious bird can't get hung up on one.

People Flesh safe

Ripe mango flesh is fantastic and totally safe to eat. The catch? The skin, sap, and resin carry urushiol, the same stuff that's in poison ivy, and it can raise an itchy rash on sensitive people. So peel with care, throw on gloves if your skin tends to react, and keep the sap off bare hands.

Mango is in the Anacardiaceae (cashew and poison-ivy family); the sap, peel, and leaves contain urushiol-related compounds (mangol) that can cause contact dermatitis in sensitive people, much like poison ivy. Wear gloves when pruning or peeling, and avoid skin contact with trimmings. The large hard seed/pit is a choking and intestinal-obstruction hazard if swallowed by pets.

Helpline numbers

United States

ASPCA Animal Poison Control: (888) 426-4435 (fee applies)

Poison Control: (800) 222-1222

United Kingdom

Animal PoisonLine: 01202 509000 (fee applies)

NHS: 111

Australia

Animal Poisons Helpline: 1300 869 738

Poisons Information Centre: 13 11 26

Canada

Poison Centres: 1-844-764-7669

Varieties

There are hundreds of mango cultivars out there, from market workhorses to prized dessert fruit. These are the ones you're most likely to bump into by name.

Tommy Atkins

It's the workhorse of the commercial trade, grown just about everywhere because the flesh is firm, it shrugs off disease pretty well, and it's tough enough to ship.

Kent

A late-season favorite for eating fresh, thanks to sweet flesh that's almost fiberless.

Haden

An old Florida cultivar people love for its colorful fruit, though it's a bit prone to anthracnose and likes to bear every other year.

Alphonso

That famous Indian dessert mango everyone raves about, with rich, aromatic flesh, but it doesn't take frost well at all.

Keitt

A big, late-ripening mango with nearly fiberless flesh that's happy to hang on the tree.

How to propagate

There's more than one way to start a mango, and the one you pick decides how soon it fruits and how true it comes. Grafting and air-layering hand you a known, faster-bearing tree, while seed is the easy but patient route.

GraftingModerate

Warm season when bark slips and rootstocks are actively growing · Grafted trees commonly begin fruiting in about 3-4 years

Grafting's the standard commercial way to raise a mango, and it's basically joining a veneer or cleft scion onto seedling rootstock in the warm season, while the bark slips and the stock's actively growing. What you get is a tree that comes true to type and starts bearing in about 3 to 4 years, way ahead of a seedling.

Air layeringModerate

Warm growing season · Roots form over several weeks to a few months before severing

Air-layering lets you clone a tree you like onto its own roots, which is handy when you want an exact copy of a favorite. Do it in the warm growing season, and the wrapped branch will put out roots over several weeks to a few months before you cut it free, though most folks reach for grafting more often.

SeedEasy

Sow fresh seed promptly in spring as viability is short · Seedlings can take 5-8 years or more to fruit and may not be true to type

Seed is the easy way in, but there's a catch: mango seed loses viability fast, so you've got to sow it fresh in spring, and quick. Then settle in for a long wait of 5 to 8 years or more before fruit, and expect some surprises, since polyembryonic seeds often come up as clones of the parent while monoembryonic ones throw variable hybrids.

Myths

Myth

If the fruit's edible, then touching the rest of the tree can't hurt, right?

Reality

Here's the thing: mango's in the poison-ivy family, so the sap, peel, and leaves carry urushiol-related compounds that can raise an itchy rash on sensitive people. The flesh is safe to eat, but the peel and the rest of the plant really do need a careful hand.

Myth

Pop a saved mango seed in the ground and it'll fruit fast, just like the one it came from.

Reality

Not quite. A monoembryonic seed gives you a variable seedling that can take years to fruit, so what comes up might look nothing like the mango you ate. Grafted named cultivars fruit true to type and a whole lot sooner, while polyembryonic seeds can come up as clones of the parent.

Sources